Metcalf, C. L., & Flint, W. P. (1939). Destructive and useful insects: Their habits and control (2. ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationMetcalf, Clell L., and Wesley P. Flint. Destructive and Useful Insects: Their Habits and Control. 2. ed. New York [u.a.]: McGraw-Hill, 1939.
MLA (9th ed.) CitationMetcalf, Clell L., and Wesley P. Flint. Destructive and Useful Insects: Their Habits and Control. 2. ed. McGraw-Hill, 1939.
Warning: These citations may not always be 100% accurate.